PDF malware analysis — malicious · b8b593a6cd009364

MALICIOUS

PDF

41.5 KB Created: 2021-05-19 18:53:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 14b63243a62bdc7465d9ca33620152ec SHA-1: 17797c3bc58af891cba7d59d8eecd26aec44dbf7 SHA-256: b8b593a6cd0093644e6c971996c725b78bfa2018d8ff751c9c576afe4e2debc5

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/406889139/spins-coin-master-game-hack PDF link annotation
- http://www.flotom.at/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/free-robux-on-ipad_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/haktuts-free-spins_GM406889139.pdfIn PDF document text
- http://www.flotom.at/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- http://www.flotom.at/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/robux-scam_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- http://www.flotom.at/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
- http://www.flotom.at/images/minecraft-free_GM479516143.pdfIn PDF document text
- http://www.flotom.at/images/pubg-uc-redeem_GM1330123889.pdfIn PDF document text
- http://www.flotom.at/images/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
- http://www.flotom.at/images/robux-free-co_GM431946152.pdfIn PDF document text
- http://www.flotom.at/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.flotom.at/images/can-you-evolve-trade-pokemon-without-trading_GM1094591345.pdfIn PDF document text
- http://www.flotom.at/images/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
- http://www.flotom.at/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004806.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4806	25512 bytes
SHA-256: `cf134032bcab46e8efec3d5f1a095d7f2fac8a54f87857265a299780a9df0747`
`font_01_sfnt_off00008138.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8138	17724 bytes
SHA-256: `0257a4de90566e409ba2bfa7d0f71a7654d133b6165eb0f1f4c82d1b29535a15`

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